Search Results

open access

An Investigation of the Hydrodynamic Characteristics of a Jet-Powered Dynamic Model of the DR 56 Flying Boat: TED No. NACA DE 328

Description: Report presenting an investigation of the hydrodynamic characteristics of a model of a 130,000-pound transonic flying-boat design with a high length-beam ratio planing-tail hull, sweptback gull wings with wing-tip floats, and wing-root jet-power-plant installation. Results regarding the aerodynamic, hydrostatic, and hydrodynamic qualities are provided.
Date: January 15, 1951
Creator: Carter, Arthur W.; West, Max D. & Bryce, Paul W., Jr.
Partner: UNT Libraries Government Documents Department
open access

An experimental study at moderate and high subsonic speeds of the flow over wings with 30 degrees and 45 degrees of sweepback in conjunction with a fuselage

Description: Report presenting pressure distributions, wake measurements, and tuft patterns for wings with 30 and 45 degrees of sweepback in conjunction with a midwing fuselage at Mach numbers to 0.96. The wings have an NACA 65-210 section, a taper ratio of 2.6:1, and aspect ratios of 7.5 and 5.2. The study indicated that when the Mach number reached high subsonic values at low angles of attack, the locations of peak negative pressure coefficients on the upper surfaces of the sections near the wing-fuselage junctures shifted rearward.
Date: June 15, 1951
Creator: Whitcomb, Richard T.
Partner: UNT Libraries Government Documents Department
open access

An experimental study at moderate and high subsonic speeds of the flow over wings with 30 degrees and 45 degrees of sweepforward in conjunction with a fuselage

Description: Report presenting pressure distributions and wake measurements for wings with 30 and 45 degrees of sweepforward, in conjunction with a midwing fuselage, at Mach numbers up to 0.96. The wings had an NACA 65-210 section, a taper ratio of 0.38, and aspect ratios of 7.5 and 5.2. Results regarding pressure distributions, wake measurements, and corrections are provided.
Date: June 15, 1951
Creator: Whitcomb, Richard T.
Partner: UNT Libraries Government Documents Department
open access

An investigation at Mach numbers of 1.40 and 1.59 of the effects of aileron profile on the aerodynamic characteristics of a complete model of a supersonic aircraft configuration

Description: An investigation has been conducted in the Langley 4- by 4-foot supersonic tunnel at Mach numbers 1.40 and 1.59 to determine the effect of aileron profile on the aerodynamic characteristics of a complete model of a supersonic aircraft configuration. The model had a 40 degree sweptback tapered wing with 10-percent-thick circular-arc sections normal to the quarter-chord line. The ailerons were 20-percent chord and were located on the outboard 50 percent of the wing semispans. The various ailerons investigated included the basic circular-arc profile and three flat-sided ailerons having ratios of trailing-edge thickness to hinge-line thickness t of 0, 0.5, and 1.0. Low aileron effectiveness was obtained with the circular-arc and t = 0 profiles. Increasing the trailing-edge thickness (t = 0.5 and 1.0) resulted in increased effectiveness as well as increased hinge moments with only a slight increase in drag.
Date: January 15, 1951
Creator: Spearman, M. Leroy & Webster, Robert A.
Partner: UNT Libraries Government Documents Department
open access

Combustion performance evaluation of magnesium-hydrocarbon slurry blends in a simulated tail-pipe burner

Description: Report presenting an experimental investigation to determine the combustion properties of several magnesium-hydrocarbon slurry blends and to indicate the feasibility of the application of slurry-type fuels to high-speed aircraft. High-concentration magnesium slurries showed large improvements in combustion stability and tail-pipe-burner net thrust.
Date: May 15, 1951
Creator: Tower, Leonard K. & Branstetter, J. Robert
Partner: UNT Libraries Government Documents Department
open access

Some Experiments on the Flutter of Sweptback Cantilever Wing Models at Mach Number 1.3

Description: "Flutter tests of sweptback cantilever wing models have been made in a small intermittent two-dimensional supersonic tunnel where the testing technique involved changing the structural parameters so that the models would flutter at the tunnel design Mach number of 1.3. Data for 21 models covering sweep angles from 30 degrees to 60 degrees and with varying parameters are included" (p. 1).
Date: March 15, 1951
Creator: Tuovila, W. J.
Partner: UNT Libraries Government Documents Department
open access

Skin-Temperature Telemeter for Determining Boundary-Layer Heat-Transfer Coefficients

Description: Memorandum presenting a description of a method of telemetering skin temperature using a small resistance wire pickup with a time constant of less than 0.003 second to determine boundary-layer heat-transfer coefficients. An evaluation of the accuracy of the method of measuring the heat-transfer coefficient is given for a particular application.
Date: March 15, 1951
Creator: Fricke, Clifford L. & Smith, Francis B.
Partner: UNT Libraries Government Documents Department
open access

Flight Determination of Drag and Pressure Recovery of a Nose Inlet of Parabolic Profile at Mach Numbers From 0.8 to 1.7

Description: Report discussing the drag and pressure recovery of a model with a nose inlet with a parabolic arc at zero angle of attack. External drag coefficient and total-pressure recovery at the end of the diffuser were measured at a range of Mach numbers and mass-flow ratios.
Date: October 15, 1951
Creator: Sears, Richard I. & Merlet, C. F.
Partner: UNT Libraries Government Documents Department
open access

Application of Theodorsen's propeller theory to the calculation of the performance of dual-rotating propellers

Description: Report presenting the use of Theodorsen's propeller theory to calculate the performance of a dual-rotating propeller with nonideal load distributions. Results regarding the propeller characteristics were made for several blade-angle settings and flight Mach numbers.
Date: March 15, 1951
Creator: Gilman, Jean, Jr.
Partner: UNT Libraries Government Documents Department
open access

Preliminary investigation of molybdenum disulfide-air-mist lubrication for roller bearings operating to DN values of 1 x 10(exp 6) and ball bearings operating to temperatures of 1000 degrees F

Description: The effectiveness of molybdenum disulfide MoS2 as a bearing lubricant was determined at high temperature and at high speeds. A 1-inch-bore ball bearing operated at temperatures to 1000 F, a speed of 1725 rpm, and a thrust load of 20 pounds when lubricated only with MoS2-air mist. A 75-millimeter-bore cageless roller bearing, provided with a MoS2-syrup coating before operation, operated at DN values to 1 x 10(exp 6) with a load of 368 pounds.
Date: October 15, 1951
Creator: Macks, E. F.; Nemeth, Z. N. & Anderson, W. J.
Partner: UNT Libraries Government Documents Department
open access

Flight Investigation at Mach Numbers From 0.8 to 1.5 of the Drag of a Canopy Located at Two Positions on a Parabolic Body of Revolution

Description: Report presenting the results of a free-flight investigation of two drag research models equipped with canopies for a range of Mach numbers from 0.8 to 1.5. The main difference between the models was the location of the canopy, which was at the 15-percent fuselage station on one model and the 25-percent fuselage station on the other. The additional drag due to the canopies was about 10 to 20 percent of the total configuration drag at supersonic speeds.
Date: March 15, 1951
Creator: Welsh, Clement J. & Morrow, John D.
Partner: UNT Libraries Government Documents Department
open access

NACA investigation of fuel performance in piston-type engines

Description: This report is a compilation of many of the pertinent research data acquired by the National Advisory Committee for Aeronautics on fuel performance in piston engines. The original data for this compilation are contained in many separate NACA reports which have in the present report been assembled in logical chapters that summarize the main conclusions of the various investigations. Complete details of each investigation are not included in this summary; however, such details may be found, in the original reports cited at the end of each chapter.
Date: May 15, 1951
Creator: Barnett, Henry C.
Partner: UNT Libraries Government Documents Department
open access

Altitude-performance and Reynolds number investigation of centrifugal-flow-compressor turbojet engine

Description: From Introduction: "Altitude-chamber and wind-tunnel investigations of the performance of turbojet engines such as those reported in references 1 to 4 have shown that the conventional correction factors fail to generalize the engine performance variables at high altitudes. An investigation was therefore made at the NACA Lewis laboratory to determine the altitude performance of the J33-A-23 turbojet engine and to demonstrate the magnitude of departure of actual altitude performance from that predicted from sea-level performance."
Date: May 15, 1951
Creator: Wilsted, H. D. & Grey, R. E.
Partner: UNT Libraries Government Documents Department
open access

Progress Report on Waste Concentration Studies: Engineering Results on the BNL Semi-Works Vapor Filtration Vapor Compression Evaporator

Description: Report issued by the Brookhaven National Laboratory discussing progress of waste concentration studies. As stated in the introduction, "the present report covers all experimental hot runs up to the time the still was turned over to the Waste Control Section for intermediate handling of laboratory D waste" (p. 1). This report includes tables, illustrations, and photographs.
Date: August 15, 1951
Creator: Horrigan, R. V.; Fried, H. M.; Manowitz, B.; Kuhl, O.; Baranosky, J. A.; Bellanca, S. et al.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Gossett honored]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about a dinner to honor Congressman Ed Gossett on his retirement in Denton after twelve years of representing Texas' 13th congressional district. The footage features a good portion of Representative Gossett's speech with sound.
Date: August 15, 1951
Duration: 2 minutes 08 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Chute shop]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas, covering a news story about a parachute packing and repair shop at Carswell Air Force Base. Various airmen are shown making, testing, and packing parachutes for future use.
Date: August 15, 1951
Duration: 1 minute 46 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Outdoor circus]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about the 22nd Community Circus at LaGrave air field in Fort Worth. Various acrobats are shown performing, such as Evelyn Kapps on the rope, trampoline artists Barbara Gallaher and Joe Slocum, and the acrobatic Bud Lucas troupe. There is also footage of Geneva McQuinn being crowned queen of the circus in a earlier pageant.
Date: August 15, 1951
Duration: 3 minutes 12 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Wash Day]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas, covering a news story about the Fort Worth police recovering wet clothes lost by someone. The footage shows traffic officer L. W. Spinks bringing lost clothes to the property room where property room officer McClanahan hangs them to dry and even irons them.
Date: August 15, 1951
Duration: 36 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Fish tales]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas, covering a news story about Paul Blackwell catching some large kingfish. The footage shows him describing to his friends Walter Glaze, Russell Young, and Paul Longley, how big the fish he caught were. He then proceeds to show them the fish.
Date: August 15, 1951
Duration: 39 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: New State Fair Building]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas, covering a news story about construction starting on a new livestock building for the State Fair. The footage shows the buildings installing giant wooden beams.
Date: August 15, 1951
Duration: 44 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

The relative physiological and toxicological properties of americium and plutonium

Description: The relative physiological and toxicological properties of americium and plutonium have been studied following their intravenous administration to rats. The urinary and fecal excretion of americium was similar to that of plutonium administered as Pu(N0{sub 3}){sub 4}. The deposition of americium the tissues and organs of the rat was also similar to that observed for plutonium. The liver and the skeleton were the major sites of deposition. Zirconium citrate administered 15 minutes after injection of americium increased the urinary excretion of americium and decreased the amount found in the liver and the skeleton at 4 and 16 days. LD{sub 30}{sup 50} studies showed americium was slightly less toxic when given in the acute toxic range than was plutonium. The difference was, however, too slight to be important in establishing a larger tolerance does for americium. Survival studies, hematological observations, bone marrow observations, comparison of tumor incidence and the incidence of skeletal abnormalities indicated that americium and plutonium have essentially the same chronic toxicity when given on an equal {mu}c. basis. These studies support the conclusion that the tolerance values for americium should be essentially the same as those for Plutonium.
Date: November 15, 1951
Creator: Carter, R.E.; Busch, E. & Johnson, O.
Partner: UNT Libraries Government Documents Department
open access

[News Script: Golden gloves]

Description: Script from the WBAP-TV station in Fort Worth, Texas, covering a news story about the opening night of the Golden Gloves boxing tournament in Fort Worth.
Date: February 15, 1951
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: News briefs]

Description: Script from the WBAP-TV station in Fort Worth, Texas, covering two news stories about Grand Prairie getting city-wide bus service and the Fort Worth Library offering a curb-side service for returning books.
Date: February 15, 1951
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
Back to Top of Screen